| vertical transmission | <microbiology> Transmission of a pathogen such as HIV from mother to foetus or baby during pregnancy or birth. See: perinatal transmission. (09 Oct 1997) |
|---|---|
| vertical vertigo | Dizziness experienced when standing upright. (05 Mar 2000) |
| rest vertical dimension | The vertical dimension of the face with the jaws in rest relation; decrease in rest vertical dimension may or may not accompany a decrease in occlusal vertical dimension; it may occur without a decrease in occlusal vertical dimension in patients with a preponderant activity of the jaw-closing musculature, as in patients with muscular hypertenseness or in chronic gum chewers; increase in rest vertical dimension may or may not accompany an increase in occlusal vertical dimension; it sometimes occurs after the removal of remaining occlusal contacts, perhaps as a result of the removal of noxious reflex stimuli. (05 Mar 2000) |
| Scardino vertical flap pyeloplasty | A reconstructive technique for correction of uteropelvic obstruction, whereby a vertical flap of renal pelvis is brought down and interposed into a vertical incision in the ureter. Compare: Culp pyeloplasty. (05 Mar 2000) |
| disease transmission, vertical | The transmission of infectious disease or pathogens from one generation to another. It includes transmission in utero or intrapartum by exposure to blood and secretions, and postpartum exposure via breastfeeding. (12 Dec 1998) |
| occlusal vertical dimension | The vertical dimension of the face when the teeth or occlusion rims are in contact in centric occlusion; decrease in occlusal vertical dimension may result from modification of tooth form by attrition or grinding, drifting of teeth, or, in edentulous patients, by resorption of residual ridges; increase may result from modifications of tooth form, tooth position, height of occlusion rims, rebasing or relining, or occlusal splints. (05 Mar 2000) |
| abdominal section | Transabdominal incision into the peritoneal cavity. Synonym: abdominal section, laparotomy, ventrotomy. Origin: celio-+ G. Tome, incision Vaginal celiotomy, opening the peritoneal cavity through the vagina. Synonym: culdotomy. (05 Mar 2000) |
| attached cranial section | Craniotomy with a segment of the calvaria and attached soft tissues turned as a flap to expose the cranial cavity. Synonym: attached cranial section, osteoplastic craniotomy. (05 Mar 2000) |
| axial section | A cross section obtained by slicing, actually or through imaging techniques, the body or any part of the body structure, in a horizontal plane, i.e., a plane which intersects the longitudinal axis at a right angle. Since actual sectioning in the transverse plane results in an inferior and a superior portion, an anatomical transverse section may be a two-dimensional view of the cut surface on the inferior aspect of the superior portion, or of the superior aspect of the inferior portion. By convention, in medical imaging transverse sections demonstrate the former unless otherwise stated. Synonym: axial section. (05 Mar 2000) |
| caesarian section | Procedure in which an infant, rather than being born vaginally, is surgically removed from the uterus. Also referred to as a C section. As the name Caesarian suggests, this is not exactly a new procedure. It was done in ancient civilizations upon the death of a near-full-term pregnant woman to salvage the baby. Julius Caesar (or one of his predecessors) was born by this procedure. Hence, the name Caesarian. The term section in surgery refers to the division of tissue. What is being divided here is the abdominal wall of the mother as well as the wall of the uterus in order to extract the baby. In Shakespeare's Macbeth the Witches' prophecy was that..none of woman born/ Shall harm Macbeth (IV.i). Unfortunately for Macbeth, the Scottish nobleman Macduff was from his mother's womb/ Untimely ripped. And thus not naturally born of woman (V.vii). Macduff was the only agent capable of destroying Macbeth. He killed Macbeth in battle. (12 Dec 1998) |
| vaginal birth after cesarian section | It was once the rule that after a c-section, the next delivery also had to be by c-section. Now vaginal delivery after cesarian section (vbac) is frequently feasible. See: vbac. (12 Dec 1998) |
| parasagittal section | A cross section obtained by slicing, actually or through imaging techniques, the body or any part of the body, or any anatomic structure in the sagittal plane, i.e., in a vertical plane parallels to the median plane. Since actual sectioning in the sagittal plane results in a right and a left portion, an anatomical sagittal section may be a two-dimensional view of the cut surface on the medial aspect of either portion. Synonym: parasagittal section. (05 Mar 2000) |
| median section | A cross section attained by slicing in the median plane, actually or through imaging techniques, the body or any part of the body which occupies or crosses the median plane or by slicing any generally symmetrical anatomic structure, such as a finger or a cell, in its midline. Since actual sectioning the median plane results in a right and a left half, an anatomical median section may be a two-dimensional view of the cut surface on the medial aspect of either half. Synonym: midsagittal section. (05 Mar 2000) |
| cesarian section | The obstetrical procedure is often spelled this way in the U.S. With just an e although the Roman emperor remains Caesar in America with an ae. Procedure in which an infant, rather than being born vaginally, is surgically removed from the uterus. Also referred to as a C section. As the name Caesarian suggests, this is not exactly a new procedure. It was done in ancient civilizations upon the death of a near-full-term pregnant woman to salvage the baby. Julius Caesar (or one of his predecessors) was born by this procedure. Hence, the name Caesarian. The term section in surgery refers to the division of tissue. What is being divided here is the abdominal wall of the mother as well as the wall of the uterus in order to extract the baby. In Shakespeare's Macbeth the Witches' prophecy was that..none of woman born/ Shall harm Macbeth (IV.i). Unfortunately for Macbeth, the Scottish nobleman Macduff was from his mother's womb/ Untimely ripped. And thus not naturally born of woman (V.vii). Macduff was the only agent capable of destroying Macbeth. He killed Macbeth in battle. See: Caesarian section. (12 Dec 1998) |
| cesarian section, lower segment | A Cesarian section in which the surgical incision (cut) is made in the lower segment of the uterus. (12 Dec 1998) |